Ship intelligent low-position emergency lighting control method and system based on computer model

Abstract

The invention relates to a ship intelligent low-position emergency lighting control method and system based on a computer model, and belongs to the technical field of ship lighting systems. According to the system control method and system, a whole-ship digital emergency model is established, and the whole-ship digital emergency model comprises ship abandoning, fire catching, leaking stoppage, personnel falling into water, oil spilling and comprehensive strain signal models in all emergency states and an electronic map model of space information of a whole cabin and aisles; when an accident occurs, the position and the type of the dangerous case can be judged according to the whole-ship digital emergency model, especially the linkage of equipment and systems such as an automatic alarm device and a fire detection system; based on this, a lighting safe evacuation route or a personnel deployment route is automatically planned; through the efficient and accurate intelligent emergency lighting system and low-position lighting guidance, efficient and orderly evacuation of ship personnel is better guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of ship lighting systems, in particular to the technical field of ship emergency low-level lighting, and specifically refers to a computer model-based ship intelligent low-level emergency lighting control method and system. Background Art

[0002] In the field of marine emergency lighting, traditional emergency lighting systems have many shortcomings. Existing low-level lighting systems, whether electric or fluorescent, only provide fixed evacuation routes and are unable to dynamically indicate the safest and shortest evacuation routes based on the actual location of a fire incident on board. If a fire or other hazardous incident occurs on a pre-set evacuation route, it may cause injury or extend evacuation time, leading to safety consequences. Therefore, it is necessary to improve the intelligence level of the existing low-level lighting system through the application of intelligent technology without compromising its original safety functions. This system can dynamically plan and indicate evacuation routes based on information from the ship incident, thereby optimizing personnel evacuation. Summary of the Invention

[0003] The purpose of the present invention is to overcome the shortcomings of the above-mentioned prior art and provide a computer model-based ship intelligent low-level emergency lighting control method and system that can efficiently and accurately calculate the location and type of the accident, plan the best evacuation route, and control the low-level lighting for dynamic guidance when a ship emergency accident occurs.

[0004] In order to achieve the above-mentioned object, the present invention provides a computer model-based intelligent low-level emergency lighting control method for ships, comprising the following steps:

[0005] Step 1: Establish a digital emergency model for the entire ship. The model should include at least: the location of lighting equipment, sensor modules, evacuation exits, the location of events requiring crew response, the display area of the existing low-level lighting system, information on operable equipment, and an electronic map model of the space information of all cabins and emergency evacuation routes;

[0006] Step 2: Monitor the ship's operating status. When an accident occurs, calculate the accident type and location based on the ship's digital emergency model and sensor module input signals.

[0007] Step 3: Determine and issue the corresponding lighting guidance route plan based on the accident type and accident location information, and use low-level lighting for dynamic route guidance;

[0008] Step 4: Automatically recalculate and replan the lighting guidance route based on the real-time updated accident status.

[0009] Preferably, in step 2, the status information of the sensor module is monitored in real time, and the sensor module input signal includes at least: an emergency signal, a fire detection signal, an air detection signal, a water level detection signal, and an oil level detection signal. Whether an accident has occurred is determined based on the abnormal signal input by the sensor module, and based on the type of abnormal signal and the corresponding sensor module number information, combined with the ship-wide digital emergency model, the accident type, the actual location of the accident and the corresponding virtual address in the electronic map model are calculated.

[0010] Preferably, the ship-wide digital emergency model can also receive external input information to perform lighting guidance route planning to simulate emergency scenarios, provide evacuation routes, and realize emergency drill functions.

[0011] Preferably, the step 3 comprises:

[0012] Step 3.1: Based on the virtual address of the accident location and the accident type, an automatically planned low-level lighting guidance route is calculated. The low-level lighting guidance route includes a personnel deployment lighting route and a personnel evacuation lighting route to ensure personnel safety in an emergency. The relevant escape and emergency routes guide the deployment of corresponding personnel on board in real time;

[0013] Step 3.2: Based on the input information, accident location, accident type, and the digital emergency model of the entire ship, calculate the nearest escape exit and the fastest escape route in the event of the accident to determine the optimal low-level lighting route, and continuously update the optimal lighting route for personnel to ensure the safe escape of personnel or the restoration or safety of equipment by engineers in an emergency;

[0014] Step 3.3: Based on the optimal low-level lighting routes corresponding to different personnel, calculate the repeated path lengths of these optimal low-level lighting routes and the number of people passing through the repeated paths, and perform scheduling optimization on the optimal low-level lighting routes to determine the final low-level lighting routes.

[0015] Preferably, step 4 includes:

[0016] Step 4.1, obtaining a real-time accident status based on the accident type, accident location, and input information in combination with the ship-wide digital emergency model;

[0017] Step 4.2: Continuously and automatically update the calculation based on the real-time accident status and re-plan the low-level lighting route; or receive manual input information to recalculate and re-plan the low-level lighting route.

[0018] A computer model-based intelligent low-level emergency lighting control system for ships, which is connected to ship lighting equipment, sensor modules, and alarm equipment;

[0019] The control system includes:

[0020] The digital emergency module is used to establish a digital emergency model for the entire ship. This model includes: lighting equipment locations, sensor module locations, evacuation exit locations, locations of incidents requiring crew attention, display areas for existing low-level lighting systems, information on operable equipment, and an electronic map model of all cabins and emergency evacuation routes;

[0021] The accident analysis module calculates the accident type and location based on the input signal and the digital emergency model of the entire ship;

[0022] An intelligent computing module, configured to calculate the optimal route plan for evacuating passengers / guiding crew members throughout the entire ship based on the location and type of the accident;

[0023] A real-time calculation module is used to recalculate and plan real-time low-level lighting routes based on real-time updated emergency event status. It can also receive manual input information to recalculate evacuation routes;

[0024] Control terminal, used for displaying emergency information and routes, inputting emergency information and instructions, performing software settings, and editing and modifying the digital emergency model of the entire ship;

[0025] After receiving sensor input information or manual input information, the control system determines whether an accident has occurred, calculates the type and location of the accident, determines the virtual accident location in the digital emergency model of the entire ship, and calculates and updates the lighting guidance route based on the electronic map model.

[0026] Preferably, the control system further comprises a communication module for associating information with the input device.

[0027] Preferably, the accident analysis module calculates the accident types and accident locations including life-saving, firefighting, water ingress, people falling overboard, oil spill response, comprehensive response, and alarm lifting according to real-time input information and based on the digital emergency model of the entire ship.

[0028] Preferably, the intelligent computing module calculates automatically planned low-level lighting guidance based on the accident location and accident type. The low-level lighting guidance includes a low-level lighting route for personnel escape or a low-level lighting route for personnel deployment. The route will avoid accident damage and potential dangerous areas, guide evacuated passengers to the nearest evacuation exit / crew to the shortest route to the location of the incident to be handled, and avoid collisions of people or intersections of paths.

[0029] Preferably, the real-time calculation module is used to recalculate and plan the real-time low-level lighting route according to the real-time updated emergency event status, and can also receive manual input information to recalculate the evacuation route.

[0030] As described above, the ship intelligent low-level emergency lighting control system of the present invention is connected to the ship's emergency lighting control system and emergency signal system through hard wiring, and receives real-time ship alarm signals (emergency response signals), ship accident-related detection and sensor signals, etc., as status input information of the ship's digital emergency model. Through real-time calculation model, the following functional modules are realized:

[0031] A digital emergency module is used to establish a digital emergency model for the entire ship. This model includes information such as the location of each evacuation exit / the location of events requiring crew response, the display area and operable equipment information of the existing low-level lighting system, and an electronic map of the spatial information of all cabins and corridors on the ship. It also includes correlations with other external input information (such as emergency signals and fire detection signals);

[0032] The accident analysis module is responsible for calculating the accident type and location based on input signals and the ship's digital emergency model. Specifically, the accident analysis module is used to calculate accident types and locations, including lifesaving (abandon ship and assemble passengers), firefighting (fire), flooding (ship leak repair), man overboard, oil spill response, comprehensive response, and all-clear, based on the real-time information and the ship's digital emergency model.

[0033] An intelligent computing module calculates the optimal route for evacuating passengers and guiding crew members across the entire ship, based on the accident location and type. This includes low-lighting routes for escape and deployment. These routes avoid damaged and potentially hazardous areas (such as fire, smoke, and flooding), guiding passengers to the nearest exit and crew members to the incident location along the shortest route possible, while avoiding collisions and cross-path intersections. The system also includes an emergency drill function, simulating emergency scenarios and providing evacuation routes for practice.

[0034] The intelligent computing module is specifically used to: automatically plan low-level lighting guidance based on the accident location and accident type through calculation. The low-level lighting guidance includes low-level lighting routes for personnel escape or low-level lighting routes for personnel deployment, etc. These routes will avoid accident damage and potential dangerous areas (such as fire, smoke, and water-influent areas), guide evacuated passengers to the nearest evacuation exit / crew to the shortest route to the location of the incident to be handled, and avoid collisions or intersections of paths. In order to ensure the safety of personnel in emergency situations to the greatest extent, the relevant escape and emergency routes guide the corresponding personnel on board in real time. Calculate the nearest escape exit or the fastest escape route in the event of the accident to determine the low-level lighting route, so as to ensure the safe escape of personnel or the restoration of engineers or the safety of equipment in emergency situations. It also has an emergency drill function that can simulate emergency scenarios, provide evacuation routes, and conduct drills.

[0035] The real-time calculation module is used to recalculate and plan the real-time low-level lighting route according to the real-time updated emergency event status. It can also receive manual input (such as cabins and routes to be avoided) and recalculate the evacuation route.

[0036] The real-time calculation module is specifically used to: recalculate and plan real-time low-level lighting routes based on the real-time updated emergency event status, and also receive manual input (such as cabins and routes to be avoided) information to recalculate the evacuation route.

[0037] The system also includes at least one control terminal: it can display emergency information and routes, input emergency information and instructions, perform software settings, and edit and modify the digital emergency model of the entire ship.

[0038] The digital emergency model includes the relationship between the internal structure of each model (the location of each evacuation exit / the location of events that need to be handled by the crew, the display area and controllable equipment information of the existing low-level lighting system, the electronic map of the spatial information of all cabins and corridors on the ship, etc.) and other external input information (such as emergency signals and fire detection signals).

[0039] The present invention first establishes a digital emergency model for the entire ship. This model includes an electronic map model showing the locations of relevant lighting equipment, the locations of various evacuation exits / events requiring crew attention, the display area and operable equipment of the existing low-level lighting system, and spatial information about all cabins and emergency evacuation routes. When an accident occurs, the model and input signals are used to calculate the type and location of the accident.

[0040] Secondly, based on the calculated results, a targeted lighting guidance path plan is determined and issued, using low-level lighting for dynamic guidance. The system also features an emergency drill function that simulates emergency scenarios, provides evacuation routes, and conducts drills. The system automatically recalculates and replans the lighting guidance path based on real-time updates of the incident status. This function can also accept manual input (such as cabins and routes to avoid) to recalculate and plan the evacuation route.

[0041] The ship-wide digital emergency model includes the relationship between the internal structure of each model (the location of each evacuation exit / the location of events that need to be handled by the crew, the display area of the existing low-level lighting system and the information of the operable equipment, the electronic map of the spatial information of the cabins and corridors of the entire ship, etc.) and other external input information (such as emergency signals and fire detection signals).

[0042] When an accident occurs:

[0043] First, the accident location and type are determined; based on the real-time input information and the digital emergency model of the entire ship, the accident types and locations such as lifesaving (abandoning ship and gathering passengers), firefighting (fire), water inflow (ship leak plugging), people falling overboard, oil spill response, comprehensive response, and alarm lifting are calculated.

[0044] Based on the accident location and type, the system automatically calculates low-level lighting guidance routes, including evacuation and deployment routes, to maximize safety in emergencies. These routes provide real-time guidance for crew deployment. The system also features an emergency drill function that simulates emergency scenarios, provides evacuation routes, and conducts drills. Based on input information, the accident location and type, and the ship's digital emergency model, the system calculates the nearest exit or fastest escape route in the event of an accident, thereby determining low-level lighting routes to ensure safe escape for personnel or for engineers to restore or maintain equipment safety in emergencies.

[0045] The system automatically recalculates and replans the low-level lighting route based on the real-time accident status, based on the accident type, accident location, and input information. Manual input (such as cabins and routes to be avoided) can also be received to recalculate and replan the low-level lighting route.

[0046] Beneficial effects:

[0047] The invention adopts a computer model-based intelligent low-level emergency lighting calculation method and system for ships, which establishes a digital emergency model of the entire ship, including the emergency lighting system, an electronic map model of the spatial information of the entire ship's cabins and aisles, and the correlation between the emergency lighting system, the emergency lighting system, and other external input information (such as emergency signals, fire detection signals). When an accident occurs, the accident type and location can be calculated according to the model, especially the emergency signal therein. Based on this calculation, automatically planned low-level lighting guidance is obtained, and the low-level lighting guidance includes a personnel evacuation lighting route or a personnel deployment lighting route. The planned lighting guidance route is automatically recalculated according to the real-time updated accident status, and the route can also be recalculated and replanned by manually inputting information. This avoids the situation where the existing static low-level lighting system may direct the evacuation flow to the disaster or adjacent dangerous areas under complex circumstances. The efficient and accurate intelligent emergency lighting system and low-level lighting guidance better ensure the efficient and orderly evacuation of ship personnel.

[0048] At the same time, the present invention also provides a path scheduling algorithm, which schedules the optimal path according to the repeated length of the evacuation path and the number of people on the repeated path, and obtains the optimized final lighting route. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] Figure 1 The present invention is a flowchart of the steps of the computer model-based ship intelligent low-level emergency lighting control method.

[0050] Figure 2 The figure is a schematic diagram of the composition structure of the computer model-based ship intelligent low-level emergency lighting control system of the present invention. DETAILED DESCRIPTION

[0051] In order to more clearly understand the technical content of the present invention, the following embodiments are used to describe in detail the specific implementation process of the computer model-based ship intelligent low-level emergency lighting control method and system of the present invention.

[0052] The system control method and system of the present invention are used. By establishing a digital emergency model for the entire ship, including models of abandonment of ship, fire, leak plugging, people falling into the water, oil spill and comprehensive response signals under various emergency conditions, as well as an electronic map model of the spatial information of all cabins and corridors on the ship, the system can determine the location and type of dangerous situation according to the digital emergency model of the entire ship, especially the linkage of equipment and systems such as automatic alarm devices and fire detection systems. Based on this, the lighting safety evacuation route or personnel deployment route will be automatically planned. Targeted lighting guidance judgments can be made in real time based on the calculation results. This function can receive automatic input or manual input (such as cabins and routes to be avoided) information, and recalculate the evacuation route as a reference for the ship's emergency plan. It also has an emergency drill function that can simulate emergency scenarios, provide evacuation routes, and conduct drills. After the end, it can return to normal state.

[0053] This avoids the situation where the existing static low-level lighting system may direct the evacuation of personnel to the disaster area or adjacent dangerous areas under complex circumstances. Through the efficient and accurate intelligent emergency lighting system and low-level lighting guidance, the efficient and orderly evacuation of ship personnel is better guaranteed.

[0054] The specific control methods are as follows:

[0055] (1) Establish a digital emergency model for the entire ship

[0056] Electronic map modeling of the spatial information of all cabins and corridors on the ship: This includes the spatial information of all cabins and corridors on the ship, which will be used to create the electronic map model used for path calculation, the location model of each evacuation exit / the location model of events that need to be handled by the crew, and the display area of the existing low-level lighting system and the information model of the operable equipment.

[0057] Emergency signal modeling: Model various emergency signals on board a ship (e.g., abandon ship, fire, leak plugging, man overboard, oil spill response, and combined response). Determine the triggering conditions and signal characteristics (e.g., sound frequency, duration, light flashing pattern, etc.) for each emergency signal, as well as how it relates to the emergency lighting system.

[0058] For example, when a ship's fire alarm system detects a fire, it triggers a fire signal. In the model, this signal is set to a siren with a specific frequency (e.g., a continuous siren with short blasts for one minute, supplemented by a long blast if the fire location is known). This signal is also linked to the low-level emergency lighting mode in the emergency lighting system. Upon receiving the fire signal, the lighting direction is adjusted according to pre-set logic to guide evacuation.

[0059] (2) Calculate the accident type and location

[0060] Real-time information collection and processing: The system is hardwired to various sensors on the ship (such as smoke sensors, temperature sensors, and water level sensors) and other related systems (such as fire alarm systems and ship status monitoring systems) to collect large amounts of data in real time. This data includes changes in smoke concentration, temperature rise, and the speed and location of water level rise.

[0061] Collected data is processed and analyzed in real time to remove noise and interference signals, ensuring data accuracy and reliability. For example, for smoke concentration data collected by a smoke sensor, a filtering algorithm is used to remove fluctuations caused by environmental interference factors. At the same time, a reasonable threshold is set. When the smoke concentration exceeds the threshold for a certain period of time, a preliminary judgment is made that a fire accident may have occurred.

[0062] Accident type judgment: Based on the preset judgment rules and algorithms, combined with the emergency signal triggering conditions and logical relationships in the emergency lighting system model, the processed real-time information is comprehensively analyzed to determine the accident type.

[0063] If smoke sensors in multiple areas simultaneously detect high smoke concentrations, temperature sensors indicate a sharp rise in temperature, and the fire alarm system sounds an alarm, the system will match this information with the characteristics of the fire accident and determine it is a firefighting (fire) accident. If water level sensors detect a rapid rise in the water level in a specific compartment or area, and the watertight system sounds a flooding alarm, the system will determine it is a flooding (ship leak repair) accident.

[0064] Accident Location Determination: Leveraging sensor installation location information and data collection characteristics, combined with a ship-wide digital emergency response model, the accident location can be precisely determined. For example, smoke and temperature sensors are distributed throughout the ship's cabins and areas. When a sensor in a particular area triggers an alarm, the specific cabin or area where the fire occurred can be determined based on its location coordinates, combined with the ship's cabin divisions and area identification. For water level sensors, the location and extent of water ingress can be determined based on their installation in various locations on the ship (such as the bilge, near watertight doors, etc.), as well as the order and magnitude of water level rise detected.

[0065] (3) Planning lighting guidance paths

[0066] Lighting route planning for personnel evacuation

[0067] When an evacuation scenario is identified (e.g., fire, flooding, etc.), the system calculates the optimal evacuation lighting route based on the accident location, the ship's spatial layout, occupant distribution information, and the distribution of lighting equipment in the emergency lighting system model. Individuals carry positioning devices, which transmit their location information to the system to obtain occupant distribution information.

[0068] First, starting from the accident site, identify a path leading to the nearest safe exit (such as the lifeboat embarkation deck or escape route exit). Factors to consider include passage width, obstacles, and crowd density. For example, prioritize spacious, unobstructed, and less crowded passages as part of the evacuation route. Simultaneously, based on the real-time occupant distribution information provided by the personnel positioning system, adjust the lighting route to ensure that the evacuation route covers all areas where personnel are located, guiding them to evacuate in an orderly manner toward the safe exit.

[0069] Determine the escape exit and the fastest escape route

[0070] The system models the ship's design drawings and actual layout, then calculates the nearest exit or fastest escape route to the accident area. This process takes into account factors such as the length, slope, difficulty of passage (such as the presence of stairs, the number and type of doors, etc.), and possible obstructions.

[0071] For example, for ships with multi-deck structures, when a fire occurs on a lower deck, the system comprehensively considers the location of the stairs between the decks, the connection of the passages, and the direction of smoke spread, and calculates the fastest escape route to the higher decks and ultimately to the lifeboat boarding deck. At the same time, based on the distribution of emergency lamps on the escape route in the emergency lighting system model, it ensures that these lamps can operate normally and provide sufficient lighting in an emergency. When determining the escape exit, not only the distance factor is considered, but also the safety (such as whether it is affected by fire, water ingress, etc.) and availability (such as whether the door can be opened normally and whether there is enough space to accommodate personnel evacuation) of the exit are evaluated.

[0072] To plan emergency evacuation routes, the system uses shortest path algorithms from graph theory, such as Dijkstra's algorithm, which has been extensively validated in map navigation applications. During the path planning calculation, the system starts at the endpoint and sequentially adds each node in the graph, from near to far, to a "shortest path tree" until it finds a complete "shortest path tree" from all nodes on the graph to the endpoint. This means planning the shortest path from every point on the ship (i.e., all nodes on the map) to the evacuation exit (i.e., the endpoint).

[0073] It's important to note that a passenger ship typically has multiple emergency exits, each responsible for evacuating passengers from various sections of the ship. This problem differs from the single-point-to-single-point problem of map-based navigation. In this system's algorithm, a single virtual exit is set up, connected to each actual exit through virtual connections. By appropriately weighting these virtual connections, a shortest path from any point on the ship to the nearest actual evacuation exit can be calculated. This tree-based planning interface ensures that evacuation paths avoid dangerous collisions or congestion caused by cross-flow, and that there are no ambiguous exit directions.

[0074] That is, each factor in the planned path is used as a calculation quantity in the model. For example, the path length, channel width, stair position, number of obstacles on the path, crowd density, number of people converging, number of people crossing, connection status of the route channel, direction of smoke spread, etc. are all assigned a calculation weight. The model calculation quantity of each planned path is calculated and the path with the smallest calculation quantity is selected, which is the optimal low-level lighting route corresponding to each person.

[0075] On this basis, the present invention further optimizes the scheduling of path planning. In the existing technical solutions, the best low-level lighting routes of individual units are basically calculated, without considering the congestion that may be caused by the convergence of various units and hinder the evacuation process. Based on this, the present invention proposes a path scheduling method, which is specifically based on the best low-level lighting routes corresponding to different personnel (different units), and the repeated path lengths of these best low-level lighting routes and the number of people passing through the repeated paths, that is, the length of the common path after convergence and the number of people on this common path are calculated, and a weight is set in the calculation model respectively, and the model calculation amount of the original best low-level lighting route is recalculated. If the calculation amount of the original best low-level lighting route is higher than that of other planned paths, the system performs path scheduling optimization and selects the path with the smallest calculation amount as the final low-level lighting route.

[0076] After path scheduling, the planned path is updated in real time, and the model calculation values of the evacuation paths of other units are recalculated and updated to adjust and select the final low-level lighting route of each unit.

[0077] Specifically, the weights in the calculation model are as follows:

[0078] where R 1,T is the actual number of people on the common path at time T, R 2,T is the original predicted number of people on the common path at time T, R 3,T is the future predicted number of people on the common path at time T, L 1,T is the actual length of the common path at time T, L 2,T is the original predicted length of the common path at time T, L 3,T is the future predicted length of the common path at time T, K is the calculation weight of the corresponding path in the calculation model, k1, k2, k3, and k4 are fixed value weight coefficients; t1 is the current time, ti and tj are the set time lengths, ti+tj is an update time period, and a time period consists of the ti time period that has occurred and the tj time period that will occur in the future.

[0079] is the cumulative value of the ratio of the actual number of people on the common path to the original predicted number of people at each moment in the time period ti within an update time cycle; The cumulative value of the future predicted number of people on the common path at each moment in the future time period tj within an update time cycle; is the cumulative value of the ratio of the actual length of the common path to the original predicted length at each moment in the time period ti that has occurred within an update time cycle; The cumulative value of the future predicted length of the common path at each moment in the future time period tj within an update time cycle;

[0080] For example, there are multiple optional paths, and each path corresponds to a calculation weight K. K is calculated by the above formula. By calculating the weight K, the calculation amount of each path in each update cycle can be obtained. By selecting the path corresponding to the minimum calculation amount, the final low-level lighting route can be updated.

[0081] This type of algorithm requires minimal computing resources. Based on the ship's electronic map, modern computers can calculate an evacuation route for the entire ship in seconds. If an unexpected situation occurs (such as a fire), the algorithm can use sensor data, manual configuration, or a combination of both to mark areas that need to be bypassed (i.e., removing certain nodes or connections) and then recalculate the route. A new, complete evacuation route map can be created in the same amount of time.

[0082] Deploy lighting route planning for personnel

[0083] For situations where personnel are required to perform emergency response operations (such as plugging leaks, extinguishing fires, etc.), the system calculates personnel deployment lighting routes based on the type of accident and location to ensure that emergency personnel can reach the accident scene quickly and safely.

[0084] For example, when plugging water ingress on a ship, the optimal entrance and path for plugging operations are determined based on the ingress location and the ship's watertight structure. Lighting route planning aims to facilitate the rapid passage of personnel carrying plugging equipment. In firefighting scenarios, a safe entry route and lighting scheme for the firefighting area are planned for firefighters based on the fire's location and spread. This ensures they can clearly see the fire source, the location of firefighting equipment, and surrounding hazards, such as storage areas where explosives could be stored.

[0085] The calculation process takes into account the equipment layout and passageway capacity within the vessel, preventing lighting routes from interfering with large equipment or narrow passageways, which could affect personnel movement. For example, if a large ventilation device occupies part of a passageway in a certain area, the system will guide personnel around that area or choose a feasible alternative route when planning the lighting route.

[0086] (4) Real-time recalculation of lighting guidance routes

[0087] Real-time accident status monitoring and information update

[0088] The system continuously monitors changes in accident status in real time, acquiring the latest information through continuous updates of sensor data. For example, in a fire accident, it monitors changes in smoke concentration, temperature rise trends, and the direction and speed of fire spread in real time. In a flooding accident, it tracks water level rise, water inflow rate, and changes in the tightness of watertight compartments.

[0089] At the same time, it receives information from other relevant systems of the ship (such as fire extinguishing effect feedback from the fire protection system, leak plugging progress report of the watertight system, etc.), integrates this information into the emergency lighting system, and updates the accident status information database.

[0090] Lighting route recalculation

[0091] Based on the updated accident status information, combined with the ship's digital emergency model and the current lighting guidance route, the system automatically recalculates the lighting route in real time. This function can also accept manual input (such as cabins to be avoided, routes, etc.) to recalculate the evacuation route.

[0092] Through the detailed implementations described above, the computer model-based intelligent low-level emergency lighting control method and system for ships can achieve efficient and accurate emergency lighting control and personnel guidance during ship emergencies, effectively improving ship safety and emergency response capabilities. In practical applications, the system can adjust and optimize parameters based on the specific structure, equipment configuration, and operating environment of different ships to adapt to various complex emergency scenarios.

[0093] The invention adopts a computer model-based intelligent low-level emergency lighting calculation method and system for ships, which establishes a digital emergency model of the entire ship, including the emergency lighting system, an electronic map model of the spatial information of the entire ship's cabins and aisles, and the correlation between the emergency lighting system, the emergency lighting system, and other external input information (such as emergency signals, fire detection signals). When an accident occurs, the accident type and location can be calculated according to the model, especially the emergency signal therein. Based on this calculation, automatically planned low-level lighting guidance is obtained, and the low-level lighting guidance includes a personnel evacuation lighting route or a personnel deployment lighting route. The planned lighting guidance route is automatically recalculated according to the real-time updated accident status, and the route can also be recalculated and replanned by manually inputting information. This avoids the situation where the existing static low-level lighting system may direct the evacuation flow to the disaster or adjacent dangerous areas under complex circumstances. The efficient and accurate intelligent emergency lighting system and low-level lighting guidance better ensure the efficient and orderly evacuation of ship personnel.

[0094] At the same time, the present invention also provides a path scheduling algorithm, which schedules the optimal path according to the repeated length of the evacuation path and the number of people on the repeated path, and obtains the optimized final lighting route.

[0095] In this specification, the present invention has been described with reference to specific embodiments thereof. However, it will be apparent that various modifications and variations may be made without departing from the spirit and scope of the present invention. Accordingly, the specification and drawings are to be regarded as illustrative rather than restrictive.

Claims

1. A computer model-based intelligent low-level emergency lighting control method for ships, characterized in that: The following steps are involved: Step 1: Establish a digital emergency model for the entire ship. The model should include at least: the location of lighting equipment, sensor modules, evacuation exits, the location of events requiring crew response, the display area of the existing low-level lighting system, information on operable equipment, and an electronic map model of the space information of all cabins and emergency evacuation routes; Step 2: Monitor the ship's operating status. When an accident occurs, calculate the accident type and location based on the ship's digital emergency model and sensor module input signals. Step 3: Determine and issue the corresponding lighting guidance route plan based on the accident type and accident location information, and use low-level lighting for dynamic route guidance; Step 4: Automatically recalculate and replan the lighting guidance route based on the real-time updated accident status.

2. The computer model-based intelligent low-level emergency lighting control method for ships according to claim 1 is characterized in that: In the step 2, the status information of the sensor module is monitored in real time. The sensor module input signal includes at least: an emergency signal, a fire detection signal, an air detection signal, a water level detection signal, and an oil level detection signal. Whether an accident has occurred is determined based on the abnormal signal input by the sensor module. According to the type of the abnormal signal and the corresponding sensor module number information, combined with the ship-wide digital emergency model, the accident type, the actual location of the accident, and the corresponding virtual address in the electronic map model are calculated.

3. The computer model-based intelligent low-level emergency lighting control method for ships according to claim 2 is characterized in that: The ship-wide digital emergency model can also receive external input information to plan lighting guidance routes, so as to simulate emergency scenarios, provide evacuation routes, and realize emergency drill functions.

4. The computer model-based intelligent low-level emergency lighting control method for ships according to claim 3 is characterized in that: The step 3 includes: Step 3.1: Based on the virtual address of the accident location and the accident type, an automatically planned low-level lighting guidance route is calculated. The low-level lighting guidance route includes a personnel deployment lighting route and a personnel evacuation lighting route to ensure personnel safety in an emergency. The relevant escape and emergency routes guide the deployment of corresponding personnel on board in real time; Step 3.2: Based on the input information, accident location, accident type, and the digital emergency model of the entire ship, calculate the nearest escape exit and the fastest escape route in the event of the accident to determine the optimal low-level lighting route, and continuously update the optimal lighting route for personnel to ensure the safe escape of personnel or the restoration or safety of equipment by engineers in an emergency; Step 3.3: Based on the optimal low-level lighting routes corresponding to different personnel, calculate the repeated path lengths of these optimal low-level lighting routes and the number of people passing through the repeated paths, and perform scheduling optimization on the optimal low-level lighting routes to determine the final low-level lighting routes.

5. The computer model-based intelligent low-level emergency lighting control method for ships according to claim 4 is characterized in that: The step 4 comprises: Step 4.1, obtaining a real-time accident status based on the accident type, accident location, and input information in combination with the ship-wide digital emergency model; Step 4.2: Continuously and automatically update the calculation based on the real-time accident status and re-plan the low-level lighting route; or receive manual input information to recalculate and re-plan the low-level lighting route.

6. A computer model-based intelligent low-level emergency lighting control system for ships, characterized in that: It is connected with ship lighting equipment, sensor modules and alarm equipment; The control system includes: The digital emergency module is used to establish a digital emergency model for the entire ship. This model includes: lighting equipment locations, sensor module locations, evacuation exit locations, locations of incidents requiring crew attention, display areas for existing low-level lighting systems, information on operable equipment, and an electronic map model of all cabins and emergency evacuation routes; The accident analysis module calculates the accident type and location based on the input signal and the digital emergency model of the entire ship; An intelligent computing module, configured to calculate the optimal route plan for evacuating passengers / guiding crew members throughout the entire ship based on the location and type of the accident; A real-time calculation module is used to recalculate and plan real-time low-level lighting routes based on real-time updated emergency event status. It can also receive manual input information to recalculate evacuation routes; Control terminal, used for displaying emergency information and routes, inputting emergency information and instructions, performing software settings, and editing and modifying the digital emergency model of the entire ship; After receiving sensor input information or manual input information, the control system determines whether an accident has occurred, calculates the type and location of the accident, determines the virtual accident location in the digital emergency model of the entire ship, and calculates and updates the lighting guidance route based on the electronic map model.

7. The computer model-based intelligent low-level emergency lighting control system for ships according to claim 6, characterized in that: The control system further includes a communication module for information association with the input device.

8. The computer model-based intelligent low-level emergency lighting control system for ships according to claim 7, characterized in that: The accident analysis module calculates the accident types and accident locations including life-saving, firefighting, water ingress, man overboard, oil spill response, comprehensive response, and alarm cancellation based on real-time input information and the digital emergency model of the entire ship.

9. The computer model-based intelligent low-level emergency lighting control system for ships according to claim 8, characterized in that: The intelligent computing module calculates automatically planned low-level lighting guidance based on the accident location and accident type. The low-level lighting guidance includes a low-level lighting route for personnel escape or a low-level lighting route for personnel deployment. The route will avoid accident damage and potential dangerous areas, guide evacuated passengers to the nearest evacuation exit / crew to the shortest path to the location of the incident to be handled, and avoid collisions or path intersections among people.

10. The computer model-based intelligent low-level emergency lighting control system for ships according to claim 9, characterized in that: The real-time calculation module is used to recalculate and plan the real-time low-level lighting route according to the real-time updated emergency event status, and can also receive manual input information to recalculate the evacuation route.

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